Context-dependent authentication system, method and device

Abstract

A method for authenticating a user using a user device connected to a communications network, the method comprising an implicit phase, wherein said implicit phase comprises performing at least one task within a workflow, said at least one task necessary to move forward within said workflow; storing information associated with said performing of at least one task; comparing said stored information with a stored user profile; and determining whether said authentication of said user is successful or unsuccessful based on said comparing.

1 . A method for authenticating a financial transaction within a network, the method comprising:
 receiving from a server, by a fraud prevention system, a request to authenticate a transaction, the request including information identifying a first user device, the first user device having initiated the transaction;   obtaining, by the fraud prevention system, one or more first characteristics associated with the first user device;   obtaining, by the fraud prevention system, one or more second characteristics associated with a second user device associated with the transaction;   authenticating the first user device, by the fraud prevention system, using an implicit authentication scheme; determining, by the fraud prevention system, a level of correlation between the one or more first characteristics with the one or more of the second characteristics; generating, by the fraud prevention system, an authentication status for the transaction based on the level of correlation; and   transmitting to the server, by the fraud prevention system, a response including the authentication status for the transaction.